const path = require('path');
const { CleanWebpackPlugin } = require('clean-webpack-plugin');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const CopyWebpackPlugin = require('copy-webpack-plugin');


module.exports = {
	entry: "./publish_source/src/Main.tsx",
	mode: process.env.NODE_ENV.trim() == 'production' ? 'production' : 'development',
	output: {
		path: path.resolve(__dirname, 'publish'),
		filename: 'static/js/[name].js',
	},

	// Enable sourcemaps for debugging webpack's output.
	devtool: "source-map",

	resolve: {
		extensions: ['.ts', '.tsx', '.js', '.jsx', '.scss', '.css'],
        symlinks: false,
        modules: ['node_modules'],
        fallback: { "crypto": false }
	},

	module: {
		rules: [
			// All files with a '.ts' or '.tsx' extension will be handled by 'awesome-typescript-loader'.
			{
				test: /\.tsx?$/,
				// exclude: /node_modules/,
				// use: "ts-loader",
				loader: "ts-loader",
				options: { allowTsInNodeModules: true }
			},
			// All output '.js' files will have any sourcemaps re-processed by 'source-map-loader'.
			{
				enforce: 'pre',
				test: /\.js$/,
				loader: "source-map-loader"
			},
            {
                test: /\.css$/,
                use: ['style-loader', 'css-loader'] //在Webpack中，loader的执行顺序是从右向左执行的，webpack先将所有css模块依赖解析完得到计算结果再创建style标签。因此把style-loader放在css-loader的前面。
            },
		]
	},
	plugins: [
        /**
        * All files inside webpack's output.path directory will be removed once, but the
        * directory itself will not be. If using webpack 4+'s default configuration,
        * everything under <PROJECT_DIR>/dist/ will be removed.
        * Use cleanOnceBeforeBuildPatterns to override this behavior.
        *
        * During rebuilds, all webpack assets that are not used anymore
        * will be removed automatically.
        *
        * See `Options and Defaults` for information
        */
        new CleanWebpackPlugin(),
        // new MiniCssExtractPlugin({
        //     filename: 'static/css/[name].[hash].css',
        // }),
        new HtmlWebpackPlugin({
            template: './publish_source/index.html',
            filename: 'index.html',
            inject: true,
            // favicon: path.resolve('favicon.ico'),//favicon路径
        }),
		new CopyWebpackPlugin({
			patterns: [
				{
					from: 'publish_source/three/',
					to: 'three/'
				},
				{
					from: 'publish_source/image/',
					to: 'image/'
				}
			],
		}),

	],
	// When importing a module whose path matches one of the following, just
	// assume a corresponding global variable exists and use that instead.
	// This is important because it allows us to avoid bundling all of our
	// dependencies, which allows browsers to cache those libraries between builds.
	externals: {
	}
};